Direct liquid cooling of room-temperature operated quantum cascade lasers
Journal
Electronics Letters
Journal Volume
42
Journal Issue
9
Pages
534-535
Date Issued
2006
Author(s)
Abstract
A compact packaging module for direct liquid cooling of room-temperature quantum cascade lasers is implemented. The light was coupled out of the hermetically sealed package through a mid-infrared fibre epoxy-bonded to the laser. The threshold current reduces by ?10%, compared to convectional substrate-side cooled lasers when using low boiling temperature (boiling point (b.p.)=34¢XC) 3M HFE-7000 coolant. No reduction was observed with high boiling point 3M FC-77 (b.p.=97¢XC) coolant. ? The Institution of Engineering and Technology 2006.
Type
journal article